275 



Phrasmites, 23T, 2,^2; communis, 229 



Phyllodoce, 258; coerulea, 254 



Phyllanthus carolincnsis, 188 



Phyllospadix, 197 



Phyto-haematins, 90 



Phytopathology, 76 



Picris nitifla, 9 



Pilea pumila, 207, 208 



Pimpinella anisum, 151 



Pinchot, G., 70 



Pinney, M. E., personal, 124 



Pinus glabra, 227, 229; paliistris, 95; 

 Taeda, 36, 229 



Piper, C. v., 74 



Pithophoia, 17; oedogonia, 17 



Pittosporum, 176 



Planera, 230, 231; aquatica, 228 



Planorbi? florissantensis, 236 



Plantago aristata, 213; eriopoda, 213; 

 major, 4; Purshii, 213; Rugelii, 

 213; Tweedyi, 213; virginiana, 213 



Plant Life of Maryland, The (review), 

 36 



Plant Oxidases, The Nature and 

 Function of, 23, 55, 84, loi 



Plants, dwai f-water, 238 



Flant World, 141, 224 



Platanaceae, 36 



Platanus, 230-232; occidentalis, 36, 

 209, 229, 230 



Platystachys, 33 



Plum from the Lake Region of Flor- 

 ida, A new, 64 



Plumbaginaceae, 255 



Plumiera, 114, 242 



Pneumaria maritima, 258 



Poa sp., 207 



Podophyllum peltatum, 150 



Podostemonaceae, 34 



Podostemon certophyllum, 34 



Poinsettia strigosa, 260 



Polemonium humile, 258 



Polemoniaceae, 255 



Polygalaceae, 187 



Polygonum viviparum, 256 



Polygala brevifolia, 187; Curtissii, 

 187; incarnata, 187; Lewtonii, 65; 

 latifolia, 187; lutea, 187; Mariana, 

 187; paucifolia, 187; Senega, 187; 

 viridescens, 187 



Polygonaceae, 255 



Polyneura calif ornica, 180 



Polytrichum gracile anomalum, 120 



Pomaceae, 171 



Pond, R. H., 45; death of , 221 



Pool, R. J., 143 



Popular Science Monthly, 140 



Populus deltoides, 228-231; hetero- 

 phyUa, 229-231 



Porteranthus trifoliatus, 170 



Portulaceae, 255 



Potamogeton diversifolius, 10; heter- 



ophyllus, 10; Vaseyi, 198 

 Potentilla, 258; pumila, 170; simplex, 



170 

 Potomac District, Some Records from 



the, 130 

 Primulaceae, 255 

 Pringle, C. G., personal, 144 

 Proceedings of the Club, 21, 44, 68, 



118, 131, 153, 240 

 Prosopid, 82 

 Prosopsis, 78, 79, 8r 

 Prunus, 67; alleghanienis, 172; ameri- 



cana, 172; angustifolia, 66, 67, 172; 



Chicasa, 67; cuneata, 172; geniculata, 



67; Gravesi, 172; maritima, 172; 



pennsylvanica, 172, 198, 219; pumila, 



172; virginiana, 172 

 Ptelea trifoliata, 187 

 Pteris aquilina, 95 

 Fuccinia, 211 



Purdue Experiment Station, 265 

 Pyrolaceae, 255 

 Pyrola grandiflora, 258 

 Pyrus communis, 171 

 Pyxidanthera barbulata, 9 



Quercus Chapmani, 63, 64; digitata, 19; 

 geminata, 95; lyrata, 229, 230; 

 Michauxii, 229, 231, 232; myrtifolia, 

 63, 64; nigra, 229-231; platanoides, 

 209; Rolfsii, 11; virginiana, 224 



Ramaley, F., 139 



Ramsperger, G., 241 



Ranales, 108 



Rankin, E. S., 52 



Ranunculaceae, 255 



Ranunculus, 254, 257; abortivus, 208, 



210; acris, 150; pennsylv-anicus, 207 

 Rare and Little-known Publication, A, 



150 

 Rediscovery of Tillandsia Swartzii 



Baker, 31 

 Report of New York State Botanist, 221 

 Reviews of Recent Moss Literature, 119 

 Review of Reviews, 221 

 Reviews, 17, 36, 133, 155, 176, 190, 214, 



236, 264 

 Rhipidodesmis, 134 

 Rhipilia, 134; longicaulis, 135; tomen- 



tosa, 133 

 Rhipiliopsis, 134 

 Rhizophora, 132 



Rhododendron, 258; lapponicum, 254 

 Rhodiola rosea, 35, 253, 254, 258 

 Rhus, 27, 113; aromatica, 189; hirta, 



189; leucantha, 11; spp., 28, 29; 



succedana, 88; vernicifera, 27 



